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Radiant|Lab Grown|IGI

1.15ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG640446935

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG640446935

Diamond specifications and retailer prices

From $349 AUD
$245 USD
As of October 30, 2026
Save $2,370 AUD (87%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $2,719 AUD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.15ct lab-grown radiant diamond

This 1.15ct lab-grown radiant sits in the classic one-carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG640446935 or 640446935. Listed at 21 retailers as of October 30, 2026, with prices from $349 to $2,719, a $2,370 spread on the same certified stone. Brilliant Earth lists it at $2,719. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.15
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.3°
Pavilion angle32.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG640446935
Dimensions7.88 × 4.96 × 3.29 mm
L/W Ratio1.59
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.88 mm4.96 mm1.15 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG640446935
Side View
Table 63.0%Crown 40.3°Girdle: MediumPavilion 32.6°Culet: NoneDepth 66.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $2,719 AUD|Low: $335 AUD|High: $3,146 AUD|Avg: $1,022 AUD|-13.6%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 2, 2026
Retailer 3$349 AUD
Retailer 8$390 AUD
Retailer 6$404 AUD
Retailer 4$433 AUD
Retailer 7$433 AUD
Retailer 16$605 AUD
Retailer 12$713 AUD
Retailer 9$747 AUD
Retailer 2$821 AUD
Retailer 14$1,055 AUD
Retailer 15$1,130 AUD
Retailer 5$1,391 AUD
Retailer 13$1,435 AUD
Retailer 11$1,734 AUD
Retailer 10$1,893 AUD
Brilliant Earth$2,719 AUD

44 data points across 16 retailers

21 retailers$349 AUD to $2,719 AUD

A
Cheapest Retailer
-
$349 AUD
$245 USD
A
Retailer 2
-
$390 AUD
$274 USD
View
Final sale: no returns
A
Retailer 3
-
$404 AUD
$284 USD
View
Retailer 4
-
$433 AUD
$304 USD
View
Price last confirmed 7 days ago
A
Retailer 5
-
$433 AUD
$304 USD
View
A
Retailer 6
-
$605 AUD
$425 USD
View
A
Retailer 7
-
$713 AUD
€477 EUR
View
A
Retailer 8
-
$747 AUD
ZAR 8,475 ZAR
View
A
Retailer 9
-
$816 AUD
$573 USD
View
A
Retailer 10
-
$821 AUD
£454 GBP
View
B+
Retailer 11
-
$1,055 AUD
View
B+
Retailer 12
-
$1,130 AUD
$794 USD
View
B+
Retailer 13
-
$1,391 AUD
$977 USD
View
Retailer 14
-
$1,395 AUD
$980 USD
View
Price last confirmed 16 days ago
B+
Retailer 15
-
$1,435 AUD
View
B+
Retailer 16
-
$1,464 AUD
$1,029 USD
View
B+
Retailer 17
-
$1,570 AUD
$1,103 USD
View
B+
Retailer 18
-
$1,734 AUD
£959 GBP
View
B+
Retailer 19
-
$1,893 AUD
$1,330 USD
View
B
Retailer 20
-
$1,904 AUD
$1,337 USD
View
Most Expensive
B
Brilliant Earth
14080924A · Oct 31
$2,719 AUD
$1,910 USD
View
20 more retailers have this diamond
Prices start from $349 AUDSave up to $2,370 AUD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.15ct Radiant
$349 AUD